How to add Blueprint Widget HUD to C++ GameMode?

Development Programming & Scripting Blueprint
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1

I have a Blueprint HUD…

WidgetBlueprint'/Game/UI/GameHUD.GameHUD'

And a C++ GameMode…

Class'/Script/Trek_On.Trek_OnGameMode'

The GameMode is as follows:

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "GameFramework/GameMode.h"
#include "Trek_OnGameMode.generated.h"

class AEnemy;

UCLASS()
class TREK_ON_API ATrek_OnGameMode : public AGameMode
{
	GENERATED_BODY()
	
public:

	// Constructor
	ATrek_OnGameMode();

	// Array of current enemies
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Enemies")
		TArray<AEnemy *> Enemies;
};

And…

// Fill out your copyright notice in the Description page of Project Settings.

#include "Trek_On.h"
#include "Enterprise.h"
#include "Trek_OnGameMode.h"
#include "GameFramework/HUD.h"

ATrek_OnGameMode::ATrek_OnGameMode()
{
	static ConstructorHelpers::FObjectFinder<UClass> HUDFinder(
		TEXT("WidgetBlueprint'/Game/UI/GameHUD.GameHUD'"));

	DefaultPawnClass = AEnterprise::StaticClass();
	HUDClass = (UClass *) HUDFinder.Object;
}

I’m getting the following error and my HUD is not showing up.

Error: CDO Constructor (Trek_OnGameMode): Failed to find WidgetBlueprint'/Game/UI/GameHUD.GameHUD'

I’ve changed this line:

	static ConstructorHelpers::FObjectFinder<UClass> HUDFinder(
		TEXT("WidgetBlueprint'/Game/UI/GameHUD.GameHUD_C'"));

And I now no longer get the CDO error, but my HUD still isn’t showing up…

2

You should use UWidgetBlueprint instead of UClass and then from Object you call GetBlueprintClass() to get UClass*

3

ATrek_OnGameMode::ATrek_OnGameMode()
{
static ConstructorHelpers::FObjectFinder HUDFinder(
TEXT(“WidgetBlueprint’/Game/UI/GameHUD.GameHUD_C’”));

	DefaultPawnClass = AEnterprise::StaticClass();

	HUDClass = HUDFinder.Object->GetBlueprintClass();
}

I’m getting a “UWidgetBlueprint” is undefined, do I need to include something?

4

Hmmm this belongs to UMGEditor which is editor module which you can’t distribute, try UBlueprint insted, it’s base class of UWidgetBlueprint, in main engine module

5

error C2039: ‘GetBlueprintClass’ : is not a member of ‘UBlueprint’

6

Thats wierd it should be there:

7

Hey,

Any success ? I’m bumping into the same problem.

Thanks

Cedric